| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| ARST | Director | Oct 21, 2010 | Option Exercise | $43.50 | 2,572 | 111,882 | 0 | Oct 25, 2010, 03:46 PM |
| ARST | Director | Oct 21, 2010 | Option Exercise | $43.50 | 6,286 | 273,441 | 0 | Oct 25, 2010, 03:46 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| ARST | Director | Oct 21, 2010 | Option Exercise | 111,882 |
| ARST | Director | Oct 21, 2010 | Option Exercise | 273,441 |